J.O.A. Slip Dress in Slate. - size XS (also in ) J.O.A. Slip Dress in Slate. - size XS (also in ) Poly blend. Dry clean by leather expert only. Fully lined. Adjustable shoulder straps. Pleated velvet fabric. Back cut-out. JOA-WD115. BC6354. JOA is a global destination for women looking for runway-inspired, fun and easy-to-wear pieces. Our designers travel across the world to search for inspirations that you won't find anywhere else. At JOA, our goal is to bring you truly unique items that can't be found everywhere.